THE FESTIVAL OF SUKKOT (BOOTHS, TABERNACLES) begins this evening at sundown. Best wishes to all those observing it.
Biblical background to the festival is found in Leviticus 23:39-43 and Deuteronomy 16:13-15, with mentions also in Deuteronomy 31:10, Zechariah 14:16-18, Ezra 3:4, and 2 Chronicles 8:12-13. And there is one mention in the New Testament in John 7:2.
Past posts dealing with the historical background of the festival are here, here, here, here, here, here, here, and here.